must misfire
Regular verb: misfire - misfired- misfired

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must misfire
you must misfire
he must misfire
we must misfire
you must misfire
they must misfire 	I must be misfiring
you must be misfiring
he must be misfiring
we must be misfiring
you must be misfiring
they must be misfiring	I must have misfired
you must have misfired
he must have misfired
we must have misfired
you must have misfired
they must have misfired	I must have been misfiring
you must have been misfiring
he must have been misfiring
we must have been misfiring
you must have been misfiring
they must have been misfiring	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't misfire
you mustn't misfire
he mustn't misfire
we mustn't misfire
you mustn't misfire
they mustn't misfire 	I mustn't be misfiring
you mustn't be misfiring
he mustn't be misfiring
we mustn't be misfiring
you mustn't be misfiring
they mustn't be misfiring	I mustn't have misfired
you mustn't have misfired
he mustn't have misfired
we mustn't have misfired
you mustn't have misfired
they mustn't have misfired	I mustn't have been misfiring
you mustn't have been misfiring
he mustn't have been misfiring
we mustn't have been misfiring
you mustn't have been misfiring
they mustn't have been misfiring	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I misfire?
must you misfire?
must he misfire?
must we misfire?
must you misfire?
must they misfire? 	must I be misfiring?
must you be misfiring?
must he be misfiring?
must we be misfiring?
must you be misfiring?
must they be misfiring? 	must I have misfired?
must you have misfired?
must he have misfired?
must we have misfired?
must you have misfired?
must they have misfired? 	must I have been misfiring?
must you have been misfiring?
must he have been misfiring?
must we have been misfiring?
must you have been misfiring?
must they have been misfiring? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I misfire?
mustn't you misfire?
mustn't he misfire?
mustn't we misfire?
mustn't you misfire?
mustn't they misfire? 	mustn't I be misfiring?
mustn't you be misfiring?
mustn't he be misfiring?
mustn't we be misfiring?
mustn't you be misfiring?
mustn't they be misfiring? 	mustn't I have misfired?
mustn't you have misfired?
mustn't he have misfired?
mustn't we have misfired?
mustn't you have misfired?
mustn't they have misfired? 	mustn't I have been misfiring?
mustn't you have been misfiring?
mustn't he have been misfiring?
mustn't we have been misfiring?
mustn't you have been misfiring?
mustn't they have been misfiring?